Clock face



FIG. 1 is a top plan view of a clock face showing my new design;

FIG. 2 is an isometric view thereof;

FIG. 3 is a dimetric view thereof; and,

FIG. 4 is a trimetric view thereof.

The broken line showing of numbers is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a clock face, as shown and described. 